Which statement is correctly written as a biconditional statement?

Question

If you score 60% or higher on the exam, then you pass.
If you score 60 percent or higher on the exam, then you pass.

You pass the exam if and only if you score 60% or higher.
You pass the exam if and only if you score 60 percent or higher.

If you pass the exam, then you score 60% or higher.
If you pass the exam, then you score 60 percent or higher.

You pass the exam or you score 60% or higher.

Answer 1

if and only if
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